Sofa



FIG. 1 is a top, front and right side perspective view of the sofa;

FIG. 2 is a top plan view of the sofa shown in FIG. 1;

FIG. 3 is a front elevation view of the sofa shown in FIG. 1;

FIG. 4 is a rear elevation view of the sofa shown in FIG. 1;

FIG. 5 is a bottom plan view of the sofa shown in FIG. 1;

FIG. 6 is a left side elevation view of the sofa shown in FIG. 1;

FIG. 7 is a right side elevation view of the sofa shown in FIG. 1;

FIG. 8 is a top, front and right side perspective view of another embodiment of the sofa; and,

FIG. 9 is a top, rear and left side perspective view of the sofa shown in FIG. 8.

The broken lines shown in FIG. 1 are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a sofa, as shown and described. 